Phenom II X6 1100T OC Progress

ken0y

ken0y

ken0y

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Joined
11 Dec 2012
Posts
78
Location
Glasgow, Scotland
Hey, I seem to be stable at 3.8 with the following settings:

CPU multiplier = 19
CPUNB = 2800
CPU Volt = 1.43
CPU/NB Volt = 1.35
Ram 1333
HT = 200mhz

Ive tried with 20x multiplier but fails quickly in Prime95, Ive had the voltage up over 1.45 but it didnt make any difference. Should the CPU/NB voltage go up also?

Ive read a lot of tutorials etc but unsure where to go from here, cooling is fine I just cant seem to tweak the Bios successfully. Any pointers would be welcome :)

K
 
CPU volts seem way to high for 3.8.

To get 4Ghz i found it easier to do one thing at a time, so set your NB and HT to stock also set your RAM timings low.

Try 20x multiplier at 1.45 and test it, im pretty sure it will run fine. Then back off the voltage step by step and see how low it will go.

Then bump up everything else one at a time incrementally to find your max.
 
Hey, thanks for the reply. Are the RAM timings the 1333hz etc? Is the lowest something like 800mhz? I managed 1h15 in Prime and 10x standard IntelBurnswith the following:

This was at 3914ghz with:
CPU Ratio x19
CPU HT = 206
PCI = 100
DRAM = 1099
CPU/NB = 2844

CPU Volt = 1.48
CPU/NB = 1.38
Vcore Bios = 1.44

Also with CPUZ my Ram timings =

FSB : DRAM 3:8
8-8-8-20-27-1T

I admit I did not start at the bottom and use small increments, maybe I should try that. My cpu volt use the +.5 and -.3 thing is that normal? It seems set that way in the Bios.

What CPU/NB speed should i run with your settings? The lowest?

Thanks, K
 
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x20 Multiplier at stock CPU/NB, 1.5v (the max I was willing to put in) and 800mhz DRAM, about 5 mins in prime then fail.

Maybe I have crappy silicon, Im testing the remaining 3 DRAM frequencies to see if that makes a difference :(

Cheers, K
 
Fiddled with it most of the day and the best I could get to for my preferred load temp (55C) was 3900ghz. Idling at 35C.

Multiplier: 19.5
FSB: 200
DRAM: 1333
CPU/NB: 2800

***Update: CPU-Z and Speedfan both read the VCore as 1.428v, Im not sure why the value is higher in the Asus Bios.

VCORE: 1.47 (This was the lowest I could get, I tried from 1.4 all the way up in increments of .2 and .5 but It just wasn't having it. But, the HWMonitor value during Prime never went above 1.39v.
CPU/NB: 1.35 ( Also tried from 1.3 up).

I also tried out the 4 DRAM presets per multiplier and 1333 was the highest that was stable. Its a 9-9-2-4 timing.

I could have added small increments to the FSB but I was already at my max load temps (I spent all day trying to lower voltages as much as possible) so didnt bother. The overclock is good enough for my hardware so Im pleased. Heres hoping it remains stable for the foreseeable future :)

P.S. Is there something I am doing drastically wrong that the CPU requires that voltage, I hear everyone banging on about how they used 1.4 or 1.35 etc etc. Or, are some chips just unlucky and require more? My motherboard isnt exactly amazing, its an M4A88TD-V EVO/USB3.

K
 
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ken0y said:
1.47 (This was the lowest I could get, I tried from 1.4 all the way up in increments of .2 and .5 but It just wasn't having it. But, the HWMonitor value during Prime never went above 1.39v.
Click to expand...

If your actual measured voltage is less than your voltage in your bios check your load line calibration. My old motherboard use to get some crazy Vdrop, to the point that my upped voltage in bios was like 1.65 but then i didn't use LLC so my actual voltage measured by HWmonitor was under 1.5v.
 
@Jon
I wasn't really pushing for that CPU/NB speed I just set it to that on a recommendation. What do you mean by it hurting 'core speed'? Im not actually sure what to set the CPU/NB at, I read Dolks guide somewhere and his chart said 2400 for a core speed of around 3.9.

@Avenged
Yeh, I was thinking that it may be Vdroop related. My mobo has LLC but I dont have it turned on and there doesnt seem to have any way of adjusting the load. I turned my volts to auto and used LLC but it was pumping out 1.5v and temps went too high too quickly. Are you meant to use LLC with manual volt settings?

Thanks for the replies, K
 
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